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gnu: qemu: Update to 3.0.0 [mitigate CVE-2018-3639].

* gnu/packages/virtualization.scm (qemu): Update to 3.0.0.
[source]: Remove patch.
* gnu/packages/patches/qemu-CVE-2018-11806.patch: Delete file.
* gnu/local.mk (dist_patch_DATA): Remove it.
wip-ipfs
Tobias Geerinckx-Rice 4 years ago
parent
commit
5dc8437fc0
No known key found for this signature in database GPG Key ID: DB0FF884F556D79
  1. 1
      gnu/local.mk
  2. 105
      gnu/packages/patches/qemu-CVE-2018-11806.patch
  3. 5
      gnu/packages/virtualization.scm

1
gnu/local.mk

@ -1097,7 +1097,6 @@ dist_patch_DATA = \
%D%/packages/patches/python-unittest2-remove-argparse.patch \
%D%/packages/patches/python-waitress-fix-tests.patch \
%D%/packages/patches/qemu-glibc-2.27.patch \
%D%/packages/patches/qemu-CVE-2018-11806.patch \
%D%/packages/patches/qt4-ldflags.patch \
%D%/packages/patches/qtbase-use-TZDIR.patch \
%D%/packages/patches/qtoctave-qt-5.11-fix.patch \

105
gnu/packages/patches/qemu-CVE-2018-11806.patch

@ -1,105 +0,0 @@
Fix CVE-2018-11806:
https://lists.gnu.org/archive/html/qemu-devel/2018-06/msg01012.html
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-11806
Patch copied from upstream source repository:
https://git.qemu.org/?p=qemu.git;a=commitdiff;h=864036e251f54c99d31df124aad7f34f01f5344c
From 864036e251f54c99d31df124aad7f34f01f5344c Mon Sep 17 00:00:00 2001
From: Prasad J Pandit <pjp@fedoraproject.org>
Date: Tue, 5 Jun 2018 23:38:35 +0530
Subject: [PATCH] slirp: correct size computation while concatenating mbuf
While reassembling incoming fragmented datagrams, 'm_cat' routine
extends the 'mbuf' buffer, if it has insufficient room. It computes
a wrong buffer size, which leads to overwriting adjacent heap buffer
area. Correct this size computation in m_cat.
Reported-by: ZDI Disclosures <zdi-disclosures@trendmicro.com>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
---
slirp/mbuf.c | 11 +++++------
slirp/mbuf.h | 8 +++-----
2 files changed, 8 insertions(+), 11 deletions(-)
diff --git a/slirp/mbuf.c b/slirp/mbuf.c
index 5ff24559fd..18cbf759a7 100644
--- a/slirp/mbuf.c
+++ b/slirp/mbuf.c
@@ -138,7 +138,7 @@ m_cat(struct mbuf *m, struct mbuf *n)
* If there's no room, realloc
*/
if (M_FREEROOM(m) < n->m_len)
- m_inc(m,m->m_size+MINCSIZE);
+ m_inc(m, m->m_len + n->m_len);
memcpy(m->m_data+m->m_len, n->m_data, n->m_len);
m->m_len += n->m_len;
@@ -147,7 +147,7 @@ m_cat(struct mbuf *m, struct mbuf *n)
}
-/* make m size bytes large */
+/* make m 'size' bytes large from m_data */
void
m_inc(struct mbuf *m, int size)
{
@@ -158,12 +158,12 @@ m_inc(struct mbuf *m, int size)
if (m->m_flags & M_EXT) {
datasize = m->m_data - m->m_ext;
- m->m_ext = g_realloc(m->m_ext, size);
+ m->m_ext = g_realloc(m->m_ext, size + datasize);
m->m_data = m->m_ext + datasize;
} else {
char *dat;
datasize = m->m_data - m->m_dat;
- dat = g_malloc(size);
+ dat = g_malloc(size + datasize);
memcpy(dat, m->m_dat, m->m_size);
m->m_ext = dat;
@@ -171,8 +171,7 @@ m_inc(struct mbuf *m, int size)
m->m_flags |= M_EXT;
}
- m->m_size = size;
-
+ m->m_size = size + datasize;
}
diff --git a/slirp/mbuf.h b/slirp/mbuf.h
index 893601ff9d..33b84485d6 100644
--- a/slirp/mbuf.h
+++ b/slirp/mbuf.h
@@ -33,8 +33,6 @@
#ifndef MBUF_H
#define MBUF_H
-#define MINCSIZE 4096 /* Amount to increase mbuf if too small */
-
/*
* Macros for type conversion
* mtod(m,t) - convert mbuf pointer to data pointer of correct type
@@ -72,11 +70,11 @@ struct mbuf {
struct mbuf *m_prevpkt; /* Flags aren't used in the output queue */
int m_flags; /* Misc flags */
- int m_size; /* Size of data */
+ int m_size; /* Size of mbuf, from m_dat or m_ext */
struct socket *m_so;
- caddr_t m_data; /* Location of data */
- int m_len; /* Amount of data in this mbuf */
+ caddr_t m_data; /* Current location of data */
+ int m_len; /* Amount of data in this mbuf, from m_data */
Slirp *slirp;
bool resolution_requested;
--
2.17.1

5
gnu/packages/virtualization.scm

@ -94,15 +94,14 @@
(define-public qemu
(package
(name "qemu")
(version "2.12.1")
(version "3.0.0")
(source (origin
(method url-fetch)
(uri (string-append "https://download.qemu.org/qemu-"
version ".tar.xz"))
(patches (search-patches "qemu-CVE-2018-11806.patch"))
(sha256
(base32
"0krnp2wvggpchc7fdlmyasqy7j17baz8asr2g05x0v00w003hn1k"))))
"04sp3f1gp4bdb913jf7fw761njaqp2l32wgipp1sapmxx17zcyld"))))
(build-system gnu-build-system)
(arguments
'(;; Running tests in parallel can occasionally lead to failures, like:

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